[Bug 111623] No package C-states on Dell XPS 15 9570 after resume from deep sleep

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=111623

--- Comment #16 from Don Hiatt <don.hiatt at intel.com> ---
Okay, I can duplicate this issue when enable_guc=3, looks like there is an
issue with the 'kbl_guc_33.0.0.bin' firmware. 

[dhiatt ~]$ sudo ./turbostat --quiet --show
CPU%c7,GFX%rc6,Totl%C0,Any%C0,GFX%C0
CPU%c7  GFX%rc6 Totl%C0 Any%C0  GFX%C0
99.16   100.70  1.25    0.98    0.00
99.08   100.71  1.25    0.98    0.00
99.24
CPU%c7  GFX%rc6 Totl%C0 Any%C0  GFX%C0
99.58   100.74  0.59    0.50    0.00
99.50   100.74  0.59    0.50    0.00
99.66

[dhiatt ~]$ sudo rtcwake -s 30 -m disk
rtcwake: assuming RTC uses UTC ...
rtcwake: wakeup from "disk" using /dev/rtc0 at Wed Oct 16 19:18:21 2019

[dhiatt ~]$ sudo ./turbostat --quiet --show
CPU%c7,GFX%rc6,Totl%C0,Any%C0,GFX%C0
CPU%c7  GFX%rc6 Totl%C0 Any%C0  GFX%C0
99.68   4.81    0.44    0.40    81.71
99.68   4.81    0.44    0.40    81.71
99.68
CPU%c7  GFX%rc6 Totl%C0 Any%C0  GFX%C0
99.75   4.83    0.32    0.30    81.72
99.75   4.83    0.32    0.30    81.72
99.76

[  349.858510] Setting dangerous option enable_guc - tainting kernel
[  349.858813] i915 0000:00:02.0: Incompatible option enable_guc=3 - GuC
submission is N/A
[  349.858873] i915 0000:00:02.0: Found 64MB of eDRAM
[  349.858884] i915 0000:00:02.0: vgaarb: deactivate vga console
[  349.860277] [drm] Supports vblank timestamp caching Rev 2 (21.10.2013).
[  349.860278] [drm] Driver supports precise vblank timestamp query.
[  349.861550] [drm] Finished loading DMC firmware i915/kbl_dmc_ver1_04.bin
(v1.4)
[  349.921602] [drm] GuC communication enabled
[  349.925704] i915 0000:00:02.0: GuC firmware i915/kbl_guc_33.0.0.bin version
33.0 submission:disabled
[  349.925705] i915 0000:00:02.0: HuC firmware i915/kbl_huc_4.0.0.bin version
4.0 authenticated:yes

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